Synthesis and crystallochemical characterization of the Bi{sub 3}RE{sub 5}O{sub 12}-type phases
- Institute of Low Temperature and Structure Research, Wroclaw (Poland)
A series of Bi{sub 3}{sup +3}RE{sub 5}O{sub 12}-type phases (RE = Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu) has been prepared in air at 950{degrees}C and characterized by X-ray powder diffraction and density and valence measurements performed on single-phase samples. With the exception of the Er, Yb, and Lu varieties, the characteristic feature of the series is rhombohedral symmetry. The lattice parameters of the individual phases depend on the RE element and are within the intervals a = 3.755-3.959 {angstrom} and c = 9.482-9.964 {angstrom} (hexagonal setting). Traces of very weak superstructure peaks indicate a possible unit cell multiplication. The series is stable in air and exhibits a comparatively wide compositional interval centered around the Bi{sub 3}RE{sub 5}O{sub 12} stoichiometry.
- OSTI ID:
- 70180
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 116; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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